diff --git a/ocaml-odoc.spec b/ocaml-odoc.spec
index 3c9b041..cd340db 100644
--- a/ocaml-odoc.spec
+++ b/ocaml-odoc.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{srcname}
 Version:        1.4.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Documentation compiler for OCaml and Reason
 
 License:        MIT
@@ -16,7 +16,6 @@ Source0:        %{url}/archive/%{version}/%{srcname}-%{version}.tar.gz
 BuildRequires:  ocaml >= 4.02.0
 BuildRequires:  ocaml-alcotest-devel >= 0.8.3
 BuildRequires:  ocaml-astring-devel
-BuildRequires:  ocaml-base-devel
 BuildRequires:  ocaml-bisect-ppx-devel >= 1.3.0
 BuildRequires:  ocaml-cmdliner-devel >= 1.0.0
 BuildRequires:  ocaml-cppo
@@ -24,14 +23,10 @@ BuildRequires:  ocaml-dune
 BuildRequires:  ocaml-findlib
 BuildRequires:  ocaml-fpath-devel
 BuildRequires:  ocaml-markup-devel >= 0.8.0
-BuildRequires:  ocaml-parsexp-devel
-BuildRequires:  ocaml-re-devel
 BuildRequires:  ocaml-result-devel
 BuildRequires:  ocaml-sexplib-devel
-BuildRequires:  ocaml-sexplib0-devel
 BuildRequires:  ocaml-tyxml-devel >= 4.3.0
 BuildRequires:  ocaml-uuidm-devel
-BuildRequires:  ocaml-uutf-devel
 BuildRequires:  tidy
 
 %description
@@ -47,6 +42,8 @@ but this is very much a work in progress.
 %package        devel
 Summary:        Development files for %{name}
 Requires:       %{name}%{?_isa} = %{version}-%{release}
+Requires:       ocaml-astring-devel%{?_isa}
+Requires:       ocaml-fpath-devel%{?_isa}
 Requires:       ocaml-result-devel%{?_isa}
 Requires:       ocaml-tyxml-devel%{?_isa}
 
@@ -68,8 +65,8 @@ Documentation for %{name}.
 sed -i 's/113\.33\.00/0.13.0/' odoc.opam
 
 %build
-dune build
-dune build @doc
+dune build %{?_smp_mflags}
+dune build %{?_smp_mflags} @doc
 
 %install
 dune install --destdir=%{buildroot}
@@ -134,5 +131,10 @@ dune runtest
 %license LICENSE.md
 
 %changelog
+* Thu Jan 16 2020 Jerry James <loganjerry@gmail.com> - 1.4.2-2
+- Remove some BRs needed only for transitive dependencies
+- Add ocaml-astring-devel and ocaml-fpath-devel Rs to -devel
+- Build in parallel
+
 * Fri Jan 10 2020 Jerry James <loganjerry@gmail.com> - 1.4.2-1
 - Initial RPM